Findings from an American Chemical Society survey show that the pessimism that characterized the job market in 1983 has given way to a much brighter outlook as employers hire more chemists and chemical engineers. Data from the survey on the supply and demand of chemical professionals are provided and discussed. (JN)

Traces the history of using mice for medical research and discusses the benefits of using these animals for studies in bacteriology, virology, genetics (considering X-linked genetic homologies between mice and humans), molecular biology, immunology, hematology, immune response disorders, oncology, radiobiology, pharmacology, behavior genetics,…

The use of a microcomputer as the basis of a multichannel analyzer (MCA) system is described. Principles of microcomputer MCA, choice of microcomputer, input-output port, data display, MCA program, and interrupt routine (with flowchart) are the topic areas considered. (JN)

Discusses structural and chemical features of muscle tissue. Emphasizes chemical and physical changes which occur during processing and storage and how these changes affect the eating quality of meat and fish. (JN)

Examined the influence of college housing assignments on retention of freshmen science majors, in a study of 103 students housed in proximity to other science majors and 43 housed at random. Results showed freshmen science majors housed near other science majors were more likely to be retained. (JAC)

Discusses major events leading to the development of the octet rule. Three conclusions based on the work of Mendeleev, Abegg, Thompson, Kossel, Lewis, and Langmuir are considered as is the debate over the rule's validity. (JN)

Discusses a theory suggesting that thoughts, feelings, dreams, and other workings of the mind are produced by chemical and electrical activity in the networks of nerve cells that make up the bulk of the brain. Opinions of a neuroscientist, anatomist, cognitive scientist, philosopher of science, and a biophysicist are provided. (BC)

Describes a demonstration in which the pattern on a rotating turntable can be affected by humming and adjusting the pitch of the hum. At some frequency, if conditions are right, the pattern can be stopped, or "strobed." Also describes a way to introduce humor into physics instruction. (JN)

Describes the nature of gradient refractive index (GRIN) lenses, focusing on refraction in these materials, focal length of a thin Wood lens, and on manufacturing of such lenses. Indicates that GRIN lenses of small cross section are in limited production with applications suggested for optical communication and photocopying fields. (JN)

Highlights findings from National Science Foundation's National Survey of Academic Research Instruments and Instrumentation which examined the amount, condition, and cost of existing equipment systems for 1982 in computer sciences, physical sciences, and engineering. Indicates that one-fourth of the equipment is classified as obsolete by…

Discusses issues and problems related to the rapidly decaying research infrastructure and the improvement of research facilities and equipment. Although remedies to the problem vary, university spokesmen contend that the federal government's major role in funding educational facilities in the past leaves an obligation for assistance now and in the…

The game paddle inputs of Apple microcomputers provide a simple way to get laboratory measurements into the computer. Discusses these game paddles and the necessary interface software. Includes schematics for Apple built-in paddle electronics, TRS-80 game paddle I/O, Commodore circuit for user port, and bus interface for Sinclair/Timex, Commodore,…

Discusses seven key concepts in Ausubel's learning theory which function to guide research and teaching. Also discusses concept mapping and Gowins Vee, providing examples of how they are used in chemistry instruction. (JN)

Project CHEMLAB has prepared a database which focuses on laboratory experiments suitable for high school through graduate or professional school levels. The scope of the project, the structure of the database, database features, and computer searching are discussed. (JN)

Describes the construction, design, and operation of an inexpensive, precision, multiple seed planter. (JN)